Re: Interfacing EMC with Bandit drives

Hi,

I'd be very cautious about doing that. The freq is probably that low
because of switching losses in the drive. Switching losses are what
happens when an output goes from low voltage to high voltage. During
this time there is both high current and high voltage across the
transistors. This combination results in very high heat dissipation.

Increasing the freq to 20kHz would quadruple this heating. Check the
transistor temp very carefully after doing this.

Mariss

--- In CAD_CAM_EDM_DRO@y..., jensor@q... wrote:
> Is it possible to interface a PC running EMC with a Bandit Stepper
> drive which operates at about 5 KHZ. I think it would be possible
to
> raise the frequency in the Bandit driver, but I don't know what the
> limit might might be. The frequency is set by a 555 timer.
>
> Jack Ensor